EP3903744B1 - Cathéter de pose et dispositif de pose de valve artificielle - Google Patents

Cathéter de pose et dispositif de pose de valve artificielle Download PDF

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Publication number
EP3903744B1
EP3903744B1 EP19901791.4A EP19901791A EP3903744B1 EP 3903744 B1 EP3903744 B1 EP 3903744B1 EP 19901791 A EP19901791 A EP 19901791A EP 3903744 B1 EP3903744 B1 EP 3903744B1
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EP
European Patent Office
Prior art keywords
prosthetic valve
capsule
inner sheath
delivery catheter
outer sheath
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19901791.4A
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German (de)
English (en)
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EP3903744A1 (fr
EP3903744A4 (fr
Inventor
Xuwen WU
Jie MEI
Baozhu GUI
Guoming Chen
Yu Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Microport Cardioflow Medtech Co Ltd
Original Assignee
Shanghai Microport Cardioflow Medtech Co Ltd
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Publication date
Application filed by Shanghai Microport Cardioflow Medtech Co Ltd filed Critical Shanghai Microport Cardioflow Medtech Co Ltd
Publication of EP3903744A1 publication Critical patent/EP3903744A1/fr
Publication of EP3903744A4 publication Critical patent/EP3903744A4/fr
Application granted granted Critical
Publication of EP3903744B1 publication Critical patent/EP3903744B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2427—Devices for manipulating or deploying heart valves during implantation
    • A61F2/2436—Deployment by retracting a sheath
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2442—Annuloplasty rings or inserts for correcting the valve shape; Implants for improving the function of a native heart valve
    • A61F2/2466—Delivery devices therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/0095—Packages or dispensers for prostheses or other implants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/24—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2412—Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body with soft flexible valve members, e.g. tissue valves shaped like natural valves
    • A61F2/2418—Scaffolds therefor, e.g. support stents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/9522—Means for mounting a stent or stent-graft onto or into a placement instrument
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
    • A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
    • A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
    • A61F2002/9665—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod with additional retaining means

Definitions

  • the present invention relates to the field of medical instruments and, in particular to, a prosthetic valve delivery catheter and device.
  • US Patent application US 2013/0231735 A1 describes hydraulic delivery systems for prosthetic heart valve devices and associated methods.
  • US Patent US 8,926,692 B2 describes a transcatheter prosthetic heart valve delivery device with partial deployment and release features and methods.
  • Heart valve replacement requires precise release of a prosthetic valve. Due to the high complexity of patients' anatomies, such prostheses are often designed with various irregular shapes. For example, in order to enable anchoring of a prosthetic valve in a target anatomy by a snug fit, a stent in the prosthesis may be designed to have a D-like, polygonal or another shape. Precise release of such a cross-sectionally irregular prosthetic valve into the target anatomy requires a delivery device capable of angular adjustment of the prosthetic valve. However, since the delivery path involving the femoral artery and vein is non-linear, and because an ultimate configuration of the delivery device is not coplanar, it is impossible for conventional delivery systems to allow both circumferential rotation and a constantly maintained configuration.
  • a prosthetic valve delivery catheter according to claim 1.
  • the circumferentially indexed fit between the capsule and the anchor allows them to rotate in concert with circumferential rotation of the inner sheath to adjust an alignment between the prosthetic valve and a native valve annulus so as to retain a three-dimensional configuration as required for positioning.
  • the capsule can be then driven by the outer sheath to move axially as required for release of the prosthetic valve.
  • 1 a delivery catheter; 2: a handle; 3, a prosthetic valve; 11: a guide tip; 12: a capsule; 13: an outer sheath; 14: an anchor; 15: an inner sheath; 21: an outer sheath actuation member; 22: an inner sheath actuation member; 141: an embedded section; 1411: a first strip unit; 1412, a second strip unit; 1421, a first spring; 1422, a second spring; and 142, a pull thread.
  • a prosthetic valve delivery catheter includes an outer sheath assembly and an inner sheath assembly.
  • the outer sheath assembly includes a capsule 12 in which the prosthetic valve 3 can be received and an outer sheath 13 fixedly connected at one end to the capsule 12.
  • the inner sheath assembly includes an inner sheath 15 and an anchor 14 fixedly connected to the inner sheath 15.
  • the inner sheath assembly is arranged within a lumen of the outer sheath assembly.
  • the prosthetic valve delivery catheter according to the present invention may further include a guide tip 11 connected to the inner sheath 15.
  • the guide tip 11 has a streamlined outer contour, which can avoid the guide tip from scratching the inner wall of a blood vessel and can help in guiding the advancement of the entire delivery catheter through the blood vessel.
  • the fixed connection of the capsule 12 to the outer sheath 13 may be accomplished by a smooth transition so that an outer surface of the delivery catheter generally appears smooth.
  • the capsule 12 may have an outer diameter that is equal to or greater than an outer diameter of the outer sheath 13. If there is a difference between the outer diameters of the capsule 12 and the outer sheath 13, the connection between the capsule 12 and the outer sheath 13 may be uniformly tapered proximally so that there is no bump, recess, step or the like in or on those two outer surfaces.
  • the outer sheath 13 may be configured to drive axial movement of the capsule 12 as required for the loading or release of the prosthetic valve 3.
  • a circumferentially positioning fit is formed between the capsule 12 and the anchor 14.
  • the inner sheath 15 may drive circumferential movement of the anchor 14, which may in turn cause the capsule 12 to move circumferentially as desired.
  • the inner sheath 15 is also coupled to the guide tip 11, the latter will also move with the inner sheath 15, while the outer sheath 13 still stays stationary, maintaining a three-dimensional configuration as required for positioning by the delivery catheter.
  • a prosthetic valve delivery device includes a handle 2 and a delivery catheter 1 coupled to the handle 2.
  • movement toward the delivery catheter 1 is defined as distal movement and that toward the handle 2 as proximal movement.
  • the handle 2 may be provided therein with an outer sheath actuation member 21 and an inner sheath actuation member 22.
  • the outer sheath actuation member 21 may be coupled to the outer sheath 13 in order to actuate axial movement of the outer sheath 13
  • the inner sheath actuation member 22 may be coupled to the inner sheath 15 in order to actuate circumferential rotation of the inner sheath 15.
  • the handle 2 may drive a bearing to move, thus resulting in circumferential rotation of the inner sheath actuation member 22.
  • the inner sheath 15 may rotate, causing the anchor 14 and the capsule 12 to rotate in concert therewith and thereby adjusting and aligning the prosthetic valve 3 with a native valve annulus.
  • the handle 2 may drive the bearing to move to cause axial movement of the outer sheath actuation member 21.
  • the outer sheath 13 drives the capsule 12 to move axially therewith relative to the inner sheath 15, allowing loading and release of the prosthetic valve 3.
  • the handle may be driven either electrically or manually.
  • the circumferentially positioning fit between the capsule 12 and the anchor 14 is accomplished by the method 2 described below.
  • the configuration of method 1 described below is not covered by the present invention.
  • the protrusion and recess on and in the inner wall of the capsule 12 and the outer wall of the anchor 14 may have a square, triangular, circular, irregular or other shape. Additionally, one or more such protrusions and, correspondingly, one or more such recesses may be provided.
  • protrusions and recesses may be either of the same or different shapes and distributed circumferentially on and in the outer wall of the anchor 14 and the inner wall of the capsule 12 uniformly or not.
  • multiple protrusions and recesses are uniformly distributed circumferentially on and in the outer wall of the anchor 14 and the inner wall of the capsule 12.
  • either of the capsule 12 and the anchor 14 may be provided with either of the protrusion(s) and recess(es) according to embodiments of the present invention, considering the capsule 12 has a relative small wall thickness, it is preferred that the protrusion(s) is/are provided on the inner wall of the capsule 12.
  • At least one embedded section 141 is arranged in the outer wall of the anchor 14, as shown in Fig. 8 , which has a friction force with the capsule 12 that is greater than a friction force between the prosthetic valve 3 and the capsule 12 so that a friction force generated between the anchor 14 and the capsule 12 is greater than a force for releasing or re-capturing the valve.
  • the capsule 12 and the anchor 14 can rotate in concert with each other.
  • one or more sections of a high coefficient of friction material may be embedded in the outer wall of the anchor 14 and have an outer diameter that may vary as required for fiction-based locking to the capsule 12 and unlocking therefrom.
  • a coefficient of static friction between the embedded section 141 and the capsule 12 ranges from 0.1 to 1.5.
  • the embedded section 141 includes a first strip unit 1411 and a second strip unit 1412, with a first spring 1421 and a second spring 1422 connected therebetween.
  • a pull thread 142 is further included, which is arranged at joints of the first and second strip units 1411, 1412 and the first or second spring 1421. Additionally, the pull thread 142 is drawn through the inner sheath 15 and may be tied to the handle 2.
  • the pull thread 142 may consist of a single or multiple strands.
  • Examples of the pull thread 142 may include, but are not limited to, a single solid metal wire or a thread consisting of multiple twisted metal strands.
  • the pull thread 142 may be axially pulled to change the outer diameter of the embedded section 141.
  • the first spring 1421 (or second spring 1422) may be compressed, bringing the first and second strip units 1411, 1412 of the embedded section 141 closer to each other.
  • the anchor 14 may be separated from, and move independently of, the capsule 12.
  • the first and second strip units 1411, 1412 of the embedded section 141 may move outward and abut against the capsule 12.
  • the anchor 14 and the capsule 12 may be able to rotate in concert by virtue of a friction-based locking from the embedded section 141.
  • the first and second strip units 1411, 1412 are arranged in symmetry with respect to an axis of the outer wall of the anchor 14. This facilitates connection of the pull thread 142 to all the embedded section(s) on a single side.
  • the capsule 12 may be connected to the outer sheath 13 by a bearing or an elastic material.
  • the elastic material may include, but are not limited to, silicone materials, PU materials, Pebax nylon elastomers (engineering polymers), etc.
  • the capsule 12 may be connected to the outer sheath 13 by a bearing, which allows free circumferential rotation therebetween.
  • the capsule 12 may be connected to the outer sheath 13 by a spring or elastic material. In this case, circumferential rotation between the capsule 12 and the outer sheath 13 is only possible within an angular limit that depends upon the properties of the spring or elastic material.
  • the handle 2 may be manipulated to drive axial movement of the bearing and hence the outer sheath actuation member 21, which causes axial movement of the outer sheath 13 and hence the capsule 12 with respect to the inner sheath 15, thus allowing loading and release of the prosthetic valve 3.
  • the handle 2 may be also manipulated to drive circumferential rotation of the bearing and hence the inner sheath actuation member 22, which causes the anchor 14 and the capsule 12 to rotate in concert with each other with the rotation of the inner sheath 15. In this way, the adjustment of the angle for releasing the prosthetic valve 3 can be achieved, thereby allowing precisely releasing the prosthetic valve 3.
  • the outer sheath 13 may be a controllable bending tube, such as a polymer tube or a composite metal-polymer tube.
  • the outer sheath 13 may be a polymer tube with metal structure arranged in or on the inner surface thereof.
  • the outer sheath 13 may be embedded therein with at least one metal wire, and controlling of bending angle, position and direction of the outer sheath 13 by pulling different metal wires.
  • multiple metal wires are embedded in the controllable bending tube in order to improve precision of the controlled bending.
  • the inner sheath 15 may be a single-lumen tube or a multi-lumen tube.
  • the inner sheath 15 is a multi-lumen tube because in addition to the pull thread 142, a guide wire is also intended to be threaded through the inner sheath 15.
  • the multi-lumen tube can provide separate channels for the pull thread 142 and the guide wire so that they can perform their own intended functions without affecting each other.
  • a process of loading the prosthetic valve may involve: retracting the capsule 12 by manipulating the handle 2 until a leading end of the capsule 12 is located behind the anchor 14 so that the anchor 14 is exposed; attaching the self-expanding prosthetic valve 3 to the anchor 14; and upon stabilization of the prosthetic valve 3, causing the outer sheath 13 to move forward until the prosthetic valve 3 is completely housed in the capsule 12, with its leading end abutting against the guide tip 11.
  • a process of delivering the prosthetic valve may involve: introducing the entire prosthetic valve delivery device over the guide wire into a patient's body via a puncture made therein; and delivering the capsule 12 with the prosthetic valve 3 crimped therein, through a path passing through the femoral vein and the atrial septum, to the diseased native valve annulus.
  • a process of releasing the prosthetic valve may involve: controlling the bending through the outer sheath 13, and when completing the adjustment, the outer sheath 13 is immobile; circumferentially rotating the inner sheath 15 by manipulating the handle 2 so that the anchor 14 and capsule 12 rotate in concert with each other with the rotation of the inner sheath 15, thereby adjusting the relative position between the prosthetic valve 3 and the native valve annulus so as to ensure good conformance of the prosthetic valve 3 to the native valve annulus; and upon the prosthetic valve 3 being circumferentially adjusted to the desired angular position, proximally moving the outer sheath 13 and hence the capsule 12 in the axial direction by manipulating the handle 2 until the prosthetic valve 3 is completely detached from the delivery device and released to a predetermined position.
  • the release of the prosthetic valve 3 may be suspended at any desired time to allow an additional positioning adjustment by circumferentially rotating the inner sheath 15. This facilitates real-time alignment and precise release of the prosthetic valve 3.
  • the capsule 12 may both axially move under actuation of the outer sheath 13 concurrently with the anchor 14 being kept stationary, and circumferentially rotate in concert with the anchor 14 under actuation of the inner sheath 15, concurrently with the outer sheath 13 being kept stationary. This is advantageous in allowing the capsule 12 to circumferentially move in concert with the anchor 14 and independently of the axial movement, and to move axially under actuation of the outer sheath 13 and independently of the circumferential movement.

Landscapes

  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Claims (8)

  1. Cathéter de pose de valve artificielle, comprenant un ensemble de gaine externe et un ensemble de gaine interne, dans lequel : l'ensemble gaine externe comprend une capsule (12) dans laquelle une valve artificielle (3) peut être reçue et une gaine externe (13) reliée de manière fixe à une extrémité de la capsule (12) ; l'ensemble de gaine interne comprend une gaine interne (15) et un ancrage (14) relié de manière fixe à la gaine interne (15) ; et l'ensemble de gaine interne est agencé dans la lumière de l'ensemble de gaine externe, la capsule (12) et l'ancrage (14) formant un ajustement de positionnement circonférentiel entre eux pour leur permettre de tourner de concert avec une rotation circonférentielle de la gaine interne (15),
    dans lequel une paroi extérieure de l'ancrage (14) est pourvue d'au moins une section encastrée (141), et dans lequel un frottement généré entre la section encastrée (141) et la capsule (12) est plus important qu'un frottement généré entre la valve artificielle (3) et la capsule (12),
    caractérisé en ce que
    la section encastrée (141) comprend une première unité de bande (1411) et une seconde unité de bande (1412), avec un premier ressort (1421) et un second ressort (1422) reliés entre eux,
    et
    le cathéter de pose de valve artificielle comprend en outre un fil de traction (142), dans lequel le fil de traction (142) est agencé au niveau d'une articulation où la première et la seconde unité de bande (1411, 1412) rencontrent le premier ou le deuxième ressort (1421, 1422), et est tiré hors de la gaine intérieure (15).
  2. Cathéter de pose de valve artificielle selon la revendication 1, dans lequel un coefficient de frottement statique entre la section encastrée (141) et la capsule (12) va de 0,1 à 1,5.
  3. Cathéter de pose de valve artificielle selon la revendication 1, dans lequel les première et seconde unités de bande (1411, 1412) sont agencées de manière axisymétrique sur la paroi externe de l'ancrage (14).
  4. Cathéter de pose de valve artificielle selon la revendication 1, dans lequel la capsule (12) est reliée à la gaine externe (13) par un palier ou un matériau élastique.
  5. Cathéter de pose de valve artificielle selon la revendication 1, dans lequel la gaine externe (13) est un tube en polymère ou un tube composite métal-polymère.
  6. Cathéter de pose de valve artificielle selon la revendication 1, dans lequel la gaine interne (15) est un tube à une ou plusieurs lumières.
  7. Dispositif de pose de valve artificielle, comprenant une poignée (2) et le cathéter de pose selon l'une quelconque des revendications 1 à 6, dans lequel le cathéter de pose est couplé à la poignée (2), dans lequel la poignée (2) est pourvue dans celle-ci d'un élément d'actionnement de gaine externe (21) et d'un élément d'actionnement de gaine interne (22), dans lequel l'élément d'actionnement de gaine externe (21) est couplé à la gaine externe (13) afin d'actionner un mouvement axial de la gaine externe (13), et dans lequel l'élément d'actionnement de gaine interne (22) est couplé à la gaine interne (15) afin d'actionner une rotation circonférentielle de la gaine interne (15).
  8. Dispositif de pose de valve artificielle selon la revendication 7, dans lequel le fil de traction (142) est relié de manière fixe à la poignée (2).
EP19901791.4A 2018-12-27 2019-12-20 Cathéter de pose et dispositif de pose de valve artificielle Active EP3903744B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811612802.2A CN111374797A (zh) 2018-12-27 2018-12-27 一种人工瓣膜的输送导管及输送装置
PCT/CN2019/127067 WO2020135262A1 (fr) 2018-12-27 2019-12-20 Cathéter de pose et dispositif de pose de valve artificielle

Publications (3)

Publication Number Publication Date
EP3903744A1 EP3903744A1 (fr) 2021-11-03
EP3903744A4 EP3903744A4 (fr) 2022-02-16
EP3903744B1 true EP3903744B1 (fr) 2023-08-23

Family

ID=71126106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19901791.4A Active EP3903744B1 (fr) 2018-12-27 2019-12-20 Cathéter de pose et dispositif de pose de valve artificielle

Country Status (7)

Country Link
US (1) US20220054265A1 (fr)
EP (1) EP3903744B1 (fr)
JP (1) JP7289917B2 (fr)
KR (1) KR102564673B1 (fr)
CN (1) CN111374797A (fr)
AU (1) AU2019412317B2 (fr)
WO (1) WO2020135262A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023214288A1 (fr) * 2022-05-02 2023-11-09 Medtronic, Inc. Dispositif de pose de valvule cardiaque prothétique transcathéter à extensions de support et méthode de chargement d'une valvule cardiaque prothétique sur un dispositif de pose

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100594045C (zh) * 2005-11-09 2010-03-17 温宁 人工心脏支架瓣膜的输放装置
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CN111374797A (zh) 2020-07-07
KR20210104087A (ko) 2021-08-24
WO2020135262A1 (fr) 2020-07-02
JP7289917B2 (ja) 2023-06-12
EP3903744A1 (fr) 2021-11-03
US20220054265A1 (en) 2022-02-24
KR102564673B1 (ko) 2023-08-08
AU2019412317A1 (en) 2021-07-29
AU2019412317B2 (en) 2022-11-24
JP2022515832A (ja) 2022-02-22
EP3903744A4 (fr) 2022-02-16

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